中文摘要：

基于同异分析方法，对18个云瑞系列甘蔗创新杂交组合有性后代的株高、茎径、有效茎、单茎重、锤度、丛重和锤重7个性状的平均值进行分析．并以粤糖93—159和Roc22作为对照对参试组合进行评价．结果表明：云瑞10—509×德蔗03-68、云瑞10—498×粤糖91—976、云蔗03—194×云瑞06—4337、云瑞10-554x粤糖91-976和德蔗93-88x云瑞09-754这5个组合的综合同一度值大于双对照．评定为优组合：云瑞06-74x柳城03-1137、云瑞09-169x凉蔗-2、云瑞08-954x德蔗93-88、粤糖91-976x云瑞06-8270、云蔗03-194x云瑞06-8270、云蔗03-194x云瑞10-550、云瑞07-3081×桂糖96-211、云瑞07-569x云蔗05—51、云瑞07-596x桂糖96—211、云蔗03—194x云瑞10-554、云蔗99—124x云瑞06—8270这11个组合的综合同一度值介于双对照之间．评定为较优组合。这16个优良组合可根据单株表现适当扩大入选率．在今后的云瑞创新亲本和品种选育中可进行重点筛选利用：一般组合应适当减小种植规模．在节约试验用地的同时提高甘蔗育种效率。

英文摘要：

The 18 innovative cross combination of Yunrui series sugarcane and two contrasts （YT93-159 and ROC22） were evaluated using the similarity-difference analysis through seven traits （the plant height, stem diameter, the number of effective clusters, stem weight, Brix, clump weight and Brix weight）. The results showed that the integrated identity degree of five combinations, including YR10-509xDZ03-68, YRI0-498xYT91-976, YZ03-194xYR06-4337, YR10-554x YT91-976 and DZ93-88xYR09-754, were larger than that of the two contrasts, belonged the best combinations; The integrated identity degree of 11 combinations, including YR06- 74xLC03-1137, YR09-169xLZ2, YR08-954xDZ93-88, YT91-976xYR06-8270, YZ03-194xYR06-8270, YZ03 - 194 xYR 10 -550, YR07 -3081 xGT96 -21 l, YR07 -569 xYZ05 -5 l, YR07 -596 xGT96 -211, YZ03 - 194 ~ YR10-554 and YZ99-124xYR06-8270 were between with the two contrasts, belonged to the better combinations. The 16 excellent combinations could be used as the key combinations according to appropriately increased selected ratio; the general combination should be properly reduced scale.